When copying data from this family tree, please include a reference to the origin: Alexander Cavalera, "Genealogy Familie Cavalera - Hirschberg", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-familie-cavalera-hirschberg/I432377552099.php : accessed May 30, 2024), "Margaret Plantagenet, Duchess of Brabant (1275-1333)".
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